ref: 64ed3658d2abe3829f0619e8243c60edcc1d3815
dir: /sys/games/lib/life/collapsecap/
x............... .x.............. ..x............. ...x............ ....x........... .....x.......... ......x......... .......x........ ........x....... .........x...... ..........x...xx ...........x..x. ............x.x. .............x..